Elliot D Grunewald

US Patent:

20120286779, Nov 15, 2012

Filed:

May 10, 2011

Appl. No.:

13/104721

Inventors:

DAVID O. WALSH - MUKILTEO WA, US
ELLIOT D. GRUNEWALD - SEATTLE WA, US

Assignee:

VISTA CLARA, INC. - MUKILTEO WA

International Classification:

G01R 33/44

US Classification:

324309

Abstract:

Technologies applicable to SNMR pulse sequence phase cycling are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting two or more SNMR pulse sequences and applying a phase shift to a pulse in at least one of the pulse sequences, according to any of a variety of phase cycling techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences comprising pulses of different phases, so that desired signals are preserved and undesired signals are canceled.

US Patent:

20130293228, Nov 7, 2013

Filed:

May 1, 2013

Appl. No.:

13/874655

Inventors:

DAVID O. WALSH - MUKILTEO WA, US
ELLIOT D. GRUNEWALD - SEATTLE WA, US

Assignee:

VISTA CLARA INC. - MUKILTEO WA

International Classification:

G01V 3/32

US Classification:

324303

Abstract:

Technologies applicable to NMR detection of water and hydrocarbons during induced alteration: processes are disclosed. NMR measurements may be used to monitor properties of subsurface fluids within a subsurface formation. NMR measurement devices may be deployed proximal to or within a subsurface formation that contains hydrocarbons. Multiple NMR measurements may be performed during an induced alteration process applied, to the subsurface formation to determine properties of the subsurface formation or fluid as the induced alteration process progresses. Changes in properties of the subsurface formation or fluid may be determined and may be used to determine efficacy of optimize, or otherwise modify the induced alteration process.

US Patent:

20140009148, Jan 9, 2014

Filed:

Jul 4, 2012

Appl. No.:

13/541706

Inventors:

DAVID O. WALSH - MUKILTEO WA, US
ELLIOT D. GRUNEWALD - SEATTLE WA, US

Assignee:

VISTA CLARA, INC. - MUKILTEO WA

International Classification:

G01V 3/14

US Classification:

324303, 324322

Abstract:

Nuclear Magnetic Resonance (NMR) measurement apparatus, NMR sensors, NMR measurement methods are disclosed to determine NMR properties of engineered flow management structures, and to estimate engineering properties using determined NMR properties. Example engineered flow management structures include engineered water storage, water management, water production, water sampling structures, and/or structures that serve as conduits or barriers to water movement. Technologies disclosed herein are also applicable to measuring properties relating to other fluid and/or gas flow in engineered flow management structures.

US Patent:

20140009158, Jan 9, 2014

Filed:

Sep 10, 2013

Appl. No.:

14/023033

Inventors:

ELLIOT D. GRUNEWALD - SEATTLE WA, US

Assignee:

VISTA CLARA, INC. - Mukilteo WA

International Classification:

G01R 33/44

US Classification:

324309

Abstract:

Technologies applicable to SNMR pulse sequencing are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting SNMR pulse sequences according to any of a variety of techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences.

US Patent:

20230132047, Apr 27, 2023

Filed:

Oct 19, 2022

Appl. No.:

18/047969

Inventors:

- Mukilteo WA, US
Elliot Grunewald - Seattle WA, US
Darya Morozov - Mill Creek WA, US

International Classification:

G01V 3/14

Abstract:

Switched gradient field measurement techniques for SNMR are disclosed, as well as hardware and software that implements the disclosed techniques. The disclosed techniques allow directly imaging groundwater and hydrogeologic parameters at high resolution in the near subsurface. The resulting technology redefines practical capabilities for hydrogeologic imaging and shallow groundwater mapping, ultimately improving our ability understand, manage, and respond to critical zone processes.

US Patent:

20140084927, Mar 27, 2014

Filed:

Sep 23, 2013

Appl. No.:

14/034110

Inventors:

- Mukilteo WA, US
ELLIOT D. GRUNEWALD - SEATTLE WA, US
HONG ZHANG - KENMORE WA, US

Assignee:

VISTA CLARA INC. - Mukilteo WA

International Classification:

G01V 3/14

US Classification:

324319, 324322

Abstract:

Technologies applicable to surface-based NMR measurement are disclosed. A surface probe is positionable at or above a surface of the Earth and adapted to make NMR measurements of shallow or very shallow subsurface volumes. NMR spectrometer components connected to the surface probe are configured to control electromagnetic pulses produced by the surface probe and to record resulting detected NMR signals from the subsurface volume.